COHSTTEItTTS OI!^ VOX-.. 2^VI. 



ARTICLE I. 



PAO It 



A Dictionary ot the Egyptian Language. By EJward Y. McCauley, U. S. N I 



'F>J^:EIT XX. 



ARTICLE II. 



On llie Intercentrum of the Terrestrial Vertebnita. By E. D. Cope. (With 6 cuts and a plale.) . 24;} 



ARTICLE III. 

 A Chemical Study of Yucca Angustifolia. By H. C. De S. Al)l)ott 2!H 



ARTICLE IV. 



Systematic Catalogue of the Species of Vertebrata found in the Beds of the Permian Epoch in Norlli Amer- 

 ica. With Notes and Descriptions. By E. D. Cope. (With a cut and two plates. ) 285 



ARTICLE V. 

 Synopsis of the Vertebrate Fauna of the Puerco Series. By E. D. Cope. (With 13 cuts and 2 plates ) 298 



ARTICLE VI. 

 On the Shoulder-Girdle and Extremities of Eryops. By E. D. Cope. (Willi a plate.) 802 



F j^:rt III- 



ARTICLE VIL 



The Cretaceous and Tertiary Geology of llie Sergipe-Alagdus Ba.sin of Brazil. By John C. Branncr. 



(With 10 cut.i and .T plates ) :!mi 



ARTICLE VIII. 



Descriptions of New Species of Fossils from ihe Clinton, Lower Ilelderberg, Chemimg, and Wnverly Oroups, 

 found in the Collections of the Geological Survey of Pennsylvania. By George B. SimpHon. 

 (With 31 cuts.) ir. 



ARTICLE IX. 



Tlie Mammalia of the linta Formation. By William B. Scott and Flenry Fnirfleld Osborn. (With n ruin 



and 5 plates.) . .... Ill 



